org-export.nix

{ pkgs, lib }:

with lib;
with builtins;

rec {
  export = { source, user, repo, ... }: let
    # use the main emacs package
    pkgGen = pkgs.emacsPackagesNgGen pkgs.emacs;
    # install htmlize for emacs
    emacs = pkgGen.emacsWithPackages (epkgs: [ epkgs.htmlize ]);
    # get the auth token from the environment
    token = getEnv "GITHUB_PUBLIC_REPO_TOKEN";
    # calculate the url of the repository
    giturl = "https://${user}:${token}@github.com/${user}/${repo}.git";
    # export Orgmode file to HTML and upload to Github Pages
    env = { buildInputs = [ emacs pkgs.git ]; };
    script = trace "WTF" ''
      ln -s "${source}" ./init.org;
      emacs -Q --script ${./org-export.el} -f export-init-to-html;
      mv init.html index.html
      git init;
      git checkout -b gh-pages
      git remote add origin "${giturl}"
      git add index.html;
      git commit -m "autodeploy";
      git push --force origin gh-pages;
      cp ./index.html $out;
      '';
  in pkgs.runCommand "org-export" env script;

  module = { config, pkgs, lib, ... }:
  let
    cfg = config.plugins.org-export;
  in {
    options.plugins.org-export = {
      finished = mkOption { type = types.bool; };
      sources = mkOption {
        type = with types; listOf (submodule {
          options = {
            source = mkOption { type = path; };
            user = mkOption { type = str; };
            repo = mkOption { type = str; };
          };
        });
        description = ''
          Orgfile sources to build export.
        '';
      };
    };

    config.plugins.org-export.finished = trace ":)" (deepSeq (map (job: export job) cfg.sources) true);
    config.home.file."blah".text = toString cfg.finished;

  };
}